Home / 1,981,640.69-2,734,832.81-1,122,353.81

Finding the Fourth Proportional to 1,981,640.69, 2,734,832.81 and 1,122,353.81

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Solution

The fourth proportional to 1,981,640.69, 2,734,832.81 and 1,122,353.81 is: 1,548,943.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,640.69 : 2,734,832.81 = 1,122,353.81 : x
  2. Step 2: Convert to fraction form
    1,981,640.69/2,734,832.81 = 1,122,353.81/x
  3. Step 3: Cross multiply
    1,981,640.69x = 2,734,832.81 × 1,122,353.81
  4. Step 4: Simplify right side
    1,981,640.69x = 3,069,450,018,404.74
  5. Step 5: Solve for x
    x = 3,069,450,018,404.74/1,981,640.69
  6. Step 6: Final answer
    x = 1,548,943.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.